*{
    margin: 0;
    padding: 0;
    font-size:16px
}

.van-nav-bar{
    background-color:#4994df  !important;
    .van-nav-bar__title {
        color: #fff;
    }
    .van-nav-bar__arrow{
        color: #fff !important;
      }
      .van-nav-bar__text {
        color:#fff;
    }
}